Greenrebellions Grass Grow - Poa Annua Monostand

[LeftField11]

I wiped out my Poa annua last spring. Tenacity at 2oz rate, followed by 1oz rate every 2-3 days for 4 apps.
Also hit some with PGR which reduced seedheads.

I feel bad for you Greenrebellion, this is the nightmare we all dread. At this point I'd try something like probasesteal did, or some of the other off-label Tenacity apps. What do you have to lose?

[greenrebellion]

Ya, it's pretty devastating and I am really at a loss for what to do.

I pm'ed greenbum who had quite a poa outbreak in his reno last year and he stated that despite blowing his entire annual tenacity load, the stuff did nothing. I guess the only two downsides to trying is I am running out of time if I want to plant some kind of grass before frost and if I decide to skip planting something this fall and go for a spring reno, I won't be able to use tenacity. I already have 8 oz /acre down this fall.

I am really at a loss here this morning, no idea how I should proceed but I am contemplating further Tenacity treatments.

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[greenrebellion]

Ya, it's pretty devastating and I am really at a loss for what to do.

I pm'ed greenbum who had quite a poa outbreak in his reno last year and he stated that despite blowing his entire annual tenacity load, the stuff did nothing. I guess the only two downsides to trying is I am running out of time if I want to plant some kind of grass before frost and if I decide to skip planting something this fall and go for a spring reno, I won't be able to use tenacity. I already have 8 oz /acre down this fall.

I am really at a loss here this morning, no idea how I should proceed but I am contemplating further Tenacity treatments.

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[andy10917]

Frost itself is not a problem, but frost is the final warning that the end of the season is close.

You could use another grass, but then you have the issue of how to selectively get rid of it next year. PS: don't do Annual Bluegrass.

Is it an erosion issue or horrible view to leave it and pick it up in the Spring?

Greenbum is the only member we're aware of that has had total lack of success with Tenacity. We don't know if he bought counterfeit Tenacity, applied it wrong, or what -- but his experience is far from typical.

Poa Annua can be beaten - how do you think we did renovations before 2011 (when Tenacity came to market)? How do you think the Poa Plantation got its name?

[greenrebellion]

Frost itself is not a problem, but frost is the final warning that the end of the season is close.

You could use another grass, but then you have the issue of how to selectively get rid of it next year. PS: don't do Annual Bluegrass.

Is it an erosion issue or horrible view to leave it and pick it up in the Spring?

Greenbum is the only member we're aware of that has had total lack of success with Tenacity. We don't know if he bought counterfeit Tenacity, applied it wrong, or what -- but his experience is far from typical.

Poa Annua can be beaten - how do you think we did renovations before 2011 (when Tenacity came to market)? How do you think the Poa Plantation got its name?

I can roundup it and leave it till Spring. Erosion shouldn't be too bad with this heavy clay and the ground will freeze soon. Other houses in this community are still being built so my dead/barren lot will not stand out egregiously.

I guess I can keep trying to get Tenacity to work, and if it doesn't then Roundup in early October? My primary concern is that if I don't nuke the Poa asap, that I'll just build up a fresh stock of Poa seeds in the soil (but I guess a good fall pre-emergent program can manage that if I end up re-starting in Spring).

[andy10917]

Don't you have ANY measurable success worth taking to Spring? Why kill it in Fall?

[greenrebellion]

Don't you have ANY measurable success worth taking to Spring? Why kill it in Fall?

Ok, agreed. I googled Poa Plantation and one of your threads popped up showing a gorgeous lawn. I'll keep plugging away and see if I can save this.

[andy10917]

OK. Now you made it personal. You have a mentor that is going to help turn whatever you've got into a nice lawn by this time next year. Previously personally-mentored lawn owners are HoosierLawnGnome and JGLongIsland. Their results are OK.

[greenrebellion]

OK. Now you made it personal. You have a mentor that is going to help turn whatever you've got into a nice lawn by this time next year. Previously personally-mentored lawn owners are HoosierLawnGnome and JGLongIsland. Their results are OK.

Ha, this is great news!

[probasesteal]

I agree, address the Poa this spring.

In the meantime I would consider more seed vs a Dimension application (around day 60) to stop further Poa.

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[ligrass]

Do you have any current pics of the overall lawn(s)?

[LoneRanger]

When does your "soil erosion and sedimentation control" permit expire? IMO, work with what you have now and deal with the damage next year.

[greenrebellion]

Here are some pics with explanations of each:

1. Side yard - There is good grass hiding in there, but the Poa is crowding out the good grass that is still small and in sprout and pout.


2. Side yard - You can see in this area a patch of good grass with limited weed pressure, all still in sprout and pout, but heavy weed pressure persists elsewhere.


3. Front Yard - Top down view...a lot of what you are seeing in this is weeds even though it may not be readily apparent.


4. Front Yard - more encompassing view, while it may look like its coming in pretty good...once you go up to any of these areas and get close, you realize its predominantly Poa with most of the good grass very sparse and small (sprout and pout)


5. Backyard - Top down view of section from backyard, definitely some good grass in there, but tons of Poa in there. This, to be honest is one of the better looking areas in the back.

[probasesteal]

Oh good grief. My eyes are burning.

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[Zareth]

Hopefully you can deal with the seed heads. I don't know when it seeds but there are things like proxy (?) That help prevent seed heads.
You probably got all of it to sprout already so if you kill it I bet you're good from there on!

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[andy10917]

OK, time for screwing around is over. Average first frost is 11 days away. You'll have to play the odds to keep as much new grass as possible before the season ends in about a month.

Get a Urea treatment on that ASAP -- 1 lb/K. Do it again in a week.

[greenrebellion]

OK, time for screwing around is over. Average first frost is 11 days away. You'll have to play the odds to keep as much new grass as possible before the season ends in about a month.

Get a Urea treatment on that ASAP -- 1 lb/K. Do it again in a week.

Done, 1 lb/K of Urea went down this afternoon. Will repeat in a week.

[timingchainslipped]

make sure you water that in good or you'll get burn.

[greenrebellion]

Put down another 1lb per K of Urea yesterday and a second round of Tenacity treatment. Most of the Poa seemed unphased by it the first time around. I'll get some updated pics out in the next week or so.

[GeorgiaDad]

Put down another 1lb per K of Urea yesterday and a second round of Tenacity treatment. Most of the Poa seemed unphased by it the first time around. I'll get some updated pics out in the next week or so.

Some weeds won't show any affect until the 2nd Tenacuty application. Stick with the plan.